PerformanceNavigationTiming.toJSON() - Web APIs 编辑

Experimental

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The toJSON() method is a serializer - it returns a JSON representation of the PerformanceNavigationTiming object.

Syntax

json = resourcePerfEntry.toJSON();

Arguments

None

Return value

json

A JSON object that is the serialization of the PerformanceNavigationTiming object as a map with entries from the closest inherited interface and with entries for each of the serializable attributes.

Example

// Get a resource performance entry
var perfEntries = performance.getEntriesByType("navigation");
var entry = perfEntries[0];

// Get the JSON and log it
var json = entry.toJSON();
var s = JSON.stringify(json);
console.log("PerformanceNavigationTiming.toJSON() = " + s);

Specifications

Browser compatibility

BCD tables only load in the browser